EP0068782A3 - Improvements in electrolytic reduction cells - Google Patents

Improvements in electrolytic reduction cells Download PDF

Info

Publication number
EP0068782A3
EP0068782A3 EP82303226A EP82303226A EP0068782A3 EP 0068782 A3 EP0068782 A3 EP 0068782A3 EP 82303226 A EP82303226 A EP 82303226A EP 82303226 A EP82303226 A EP 82303226A EP 0068782 A3 EP0068782 A3 EP 0068782A3
Authority
EP
European Patent Office
Prior art keywords
molten
cell
molten metal
electrolyte
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82303226A
Other versions
EP0068782A2 (en
EP0068782B1 (en
Inventor
Adam Jan Gesing
Edward Leslie Cambridge
John Mcintyre
Meine Vandermeulen
Charles James Rogers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Priority to AT82303226T priority Critical patent/ATE17133T1/en
Publication of EP0068782A2 publication Critical patent/EP0068782A2/en
Publication of EP0068782A3 publication Critical patent/EP0068782A3/en
Application granted granted Critical
Publication of EP0068782B1 publication Critical patent/EP0068782B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Primary Cells (AREA)
  • Photovoltaic Devices (AREA)

Abstract

In an electrolytic reduction cell in which molten metal is produced by electrolysis of a molten electrolyte, less dense than the molten metal product, the molten product metal collects at the bottom of the cell. A filter is provided at this location and is constructed from a material which is resistant to attack by both the molten metal and molten electrolyte, and which is wetted by the molten metal, but not by the electrolyte. By correct sizing of the passage or passages in the filter molten metal product can be drawn out of the cell without simultaneous withdrawal of molten electrolyte. In the case of a cell for the production of aluminium the filter is preferably constructed from titanium diboride.
EP82303226A 1981-06-25 1982-06-21 Improvements in electrolytic reduction cells Expired EP0068782B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82303226T ATE17133T1 (en) 1981-06-25 1982-06-21 IMPROVEMENTS IN ELECTROLYTIC REDUCTION CELLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8119589 1981-06-25
GB8119589 1981-06-25

Publications (3)

Publication Number Publication Date
EP0068782A2 EP0068782A2 (en) 1983-01-05
EP0068782A3 true EP0068782A3 (en) 1983-04-13
EP0068782B1 EP0068782B1 (en) 1985-12-27

Family

ID=10522792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82303226A Expired EP0068782B1 (en) 1981-06-25 1982-06-21 Improvements in electrolytic reduction cells

Country Status (12)

Country Link
US (1) US4551218A (en)
EP (1) EP0068782B1 (en)
JP (1) JPS6033905B2 (en)
KR (1) KR880000707B1 (en)
AT (1) ATE17133T1 (en)
AU (1) AU555450B2 (en)
BR (1) BR8203698A (en)
CA (1) CA1175779A (en)
DE (1) DE3268104D1 (en)
ES (1) ES8305849A1 (en)
NO (1) NO158144C (en)
ZA (1) ZA824257B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134705B1 (en) * 1983-08-16 1988-07-27 Alcan International Limited Method of filtering molten metal
ATE32239T1 (en) * 1983-11-29 1988-02-15 Alcan Int Ltd ALUMINUM REDUCTION CELLS.
GB8331769D0 (en) * 1983-11-29 1984-01-04 Alcan Int Ltd Aluminium reduction cells
LU85858A1 (en) * 1985-04-19 1986-11-05 Electro Nite PROCESS FOR PREVENTING DEPOSITS ON THE WALLS OF METALLURGICAL CONTAINERS AND METALLURGICAL CONTAINER SUITABLE FOR IMPLEMENTING THIS PROCESS
US5122184A (en) * 1990-12-28 1992-06-16 Aluminum Company Of America Molten salt coalescence in molten aluminum
CA2073625C (en) * 1992-07-10 1998-02-03 Adam Jan Gesing Process and apparatus for melting metals while reducing losses due to oxidation
ES2069496B1 (en) * 1993-08-10 1995-11-01 Asturiana De Zinc Sa TUB FOR ELECTROLYSIS FACILITIES.
US5498320A (en) * 1994-12-15 1996-03-12 Solv-Ex Corporation Method and apparatus for electrolytic reduction of fine-particle alumina with porous-cathode cells
US5914440A (en) * 1997-03-18 1999-06-22 Noranda Inc. Method and apparatus removal of solid particles from magnesium chloride electrolyte and molten magnesium by filtration
EP2064370A2 (en) * 2006-06-22 2009-06-03 MOLTECH Invent S.A. Aluminium collection in electrowinning cells
EP2094883B1 (en) 2006-11-03 2011-12-14 Rio Tinto Alcan International Limited An apparatus and a method for tapping metal
WO2009058277A1 (en) * 2007-10-29 2009-05-07 Ekc Technology, Inc. Novel nitrile and amidoxime compounds and methods of preparation
CN101418456B (en) * 2008-11-19 2010-08-25 中国铝业股份有限公司 Cathode and anode collocation method of novel aluminum cell with flow guiding structure
US8075747B2 (en) * 2009-01-30 2011-12-13 Alcoa Inc. Enhancement of aluminum tapping by application of targeted electromagnetic field
DE102010041084A1 (en) * 2010-09-20 2012-03-22 Sgl Carbon Se Electrolysis cell for the production of aluminum
DE102011078002A1 (en) * 2011-06-22 2012-12-27 Sgl Carbon Se Annular electrolytic cell and annular cathode with magnetic field compensation
US20150060295A1 (en) * 2013-08-29 2015-03-05 Elliot B. Kennel Electrochemical cell for aluminum production using carbon monoxide
WO2015123502A1 (en) 2014-02-13 2015-08-20 Phinix, LLC Electrorefining of magnesium from scrap metal aluminum or magnesium alloys
WO2023086616A1 (en) * 2021-11-15 2023-05-19 Alcoa Usa Corp. Advanced purification cell for aluminum scrap recycling
US11952673B2 (en) 2022-04-25 2024-04-09 Phoenix Tailings, Inc. Systems and methods for recovery of molten metal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337210A1 (en) * 1975-12-31 1977-07-29 Aluminum Co Of America ELECTROLYSIS METAL PRODUCTION

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE338675B (en) * 1964-12-30 1971-09-13 Conzinc Riotinto Ltd
US3475314A (en) * 1965-11-17 1969-10-28 Reynolds Metals Co Alumina reduction cell
GB1198325A (en) * 1966-07-06 1970-07-08 Montedison Spa Method for Producing Shaped Cryolitic Material
NO115978B (en) * 1967-01-24 1969-01-06 Alcan Aluminium Ltd
US3677926A (en) * 1970-06-16 1972-07-18 Ass Lead Mfg Ltd Cell for electrolytic refining of metals
US4338177A (en) * 1978-09-22 1982-07-06 Metallurgical, Inc. Electrolytic cell for the production of aluminum

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2337210A1 (en) * 1975-12-31 1977-07-29 Aluminum Co Of America ELECTROLYSIS METAL PRODUCTION

Also Published As

Publication number Publication date
KR880000707B1 (en) 1988-04-25
CA1175779A (en) 1984-10-09
ES513435A0 (en) 1983-04-16
DE3268104D1 (en) 1986-02-06
NO158144C (en) 1988-07-20
EP0068782A2 (en) 1983-01-05
ES8305849A1 (en) 1983-04-16
NO158144B (en) 1988-04-11
JPS6033905B2 (en) 1985-08-06
ZA824257B (en) 1983-05-25
JPS586991A (en) 1983-01-14
AU555450B2 (en) 1986-09-25
US4551218A (en) 1985-11-05
BR8203698A (en) 1983-06-21
EP0068782B1 (en) 1985-12-27
ATE17133T1 (en) 1986-01-15
AU8530382A (en) 1983-01-06
NO822174L (en) 1982-12-27

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